参数资料
型号: PIC16LC64A-04/P
厂商: Microchip Technology
文件页数: 79/126页
文件大小: 0K
描述: IC MCU OTP 2KX14 PWM 40DIP
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 10
系列: PIC® 16C
核心处理器: PIC
芯体尺寸: 8-位
速度: 4MHz
连通性: I²C,SPI
外围设备: 欠压检测/复位,POR,PWM,WDT
输入/输出数: 33
程序存储器容量: 3.5KB(2K x 14)
程序存储器类型: OTP
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2.5 V ~ 6 V
振荡器型: 外部
工作温度: 0°C ~ 70°C
封装/外壳: 40-DIP(0.600",15.24mm)
包装: 管件
56
AT90S/LS4433
1042H–AVR–04/03
Multi-processor
Communication Mode
The Multi-processor Communication mode enables several slave MCUs to receive data
from a Master MCU. This is done by first decoding an address byte to find out which
MCU has been addressed. If a particular slave MCU has been addressed, it will receive
the following data bytes as normal, while the other slave MCUs will ignore the data bytes
until another address byte is received.
For an MCU to act as a Master MCU, it should enter 9-bit Transmission mode (CHR9 in
UCSRB set). The ninth bit must be one to indicate that an address byte is being trans-
mitted, and zero to indicate that a data byte is being transmitted.
For the Slave MCUs, the mechanism appears slightly differently for 8-bit and 9-bit
Reception mode. In 8-bit Reception mode (CHR9 in UCSRB cleared), the stop bit is one
for an address byte and zero for a data byte. In 9-bit Reception mode (CHR9 in UCSRB
set), the ninth bit is one for an address byte and zero for a data byte, whereas the stop
bit is always high.
The following procedure should be used to exchange data in Multi-processor Communi-
cation mode:
1.
All slave MCUs are in Multi-processor Communication mode (MPCM in UCSRA
is set).
2.
The Master MCU sends an address byte, and all Slaves receive and read this
byte. In the slave MCUs, the RXC Flag in UCSRA will be set as normal.
3.
Each Slave MCU reads the UDR Register and determines if it has been
selected. If so, it clears the MPCM bit in UCSRA, otherwise it waits for the next
address byte.
4.
For each received data byte, the receiving MCU will set the Receive Complete
Flag (RXC in UCSRA). In 8-bit mode, the receiving MCU will also generate a
Framing Error (FE in UCSRA set), since the stop bit is zero. The other Slave
MCUs, which still have the MPCM bit set, will ignore the data byte. In this case,
the UDR Register and the RXC or FE Flags will not be affected.
5.
After the last byte has been transferred, the process repeats from step 2.
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PIC16LC64AT-04/PQ 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
PIC16LC64AT-04/PT 功能描述:8位微控制器 -MCU 3.5KB 128 RAM 33 I/O RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
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